Put in some debugging statements as I can't locally reproduce the Stokes_square_convection_1e4_vv_p1p1 failure.
Put in some debugging statements as I can't locally reproduce the Stokes_square_convection_1e4_vv_p1p1 failure.

jjo31/ATHAM-Fluidity,rjferrier/fluidity,rjferrier/fluidity,jrper/fluidity,iakovos-panourgias/fluidity,jrper/fluidity,iakovos-panourgias/fluidity,rjferrier/fluidity,jrper/fluidity,iakovos-panourgias/fluidity,jrper/fluidity,rjferrier/fluidity,iakovos-panourgias/fluidity,jjo31/ATHAM-Fluidity,rjferrier/fluidity,jjo31/ATHAM-Fluidity,jjo31/ATHAM-Fluidity,jjo31/ATHAM-Fluidity,jrper/fluidity,iakovos-panourgias/fluidity